Exercises

Gunnery exercises 1330Z to 1530Z and 1830Z to 2030Z daily 23 and 24 mar in area bound by 44-35N 001-20W,…

Bay of Biscay · HYDROLANT 812/22

What this record establishes

Archived notice · 2022-03-24 21:30Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · AVURNAV BREST 160/22 211200Z MAR 22.. Issued 2022-03-21 09:15Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Bay of Biscay. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Bay of Biscay →

issued
2022-03-21 09:15Z
status
Archived notice
self-cancels
2022-03-24 21:30Z
authority
AVURNAV BREST 160/22 211200Z MAR 22.
issued by
AVURNAV BREST
sea
Bay of Biscay
position
44.542, -1.417
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BAY OF BISCAY.
FRANCE.
DNC 08.
1. GUNNERY EXERCISES 1330Z TO 1530Z AND 1830Z TO
   2030Z DAILY 23 AND 24 MAR IN AREA BOUND BY
   44-35N 001-20W, 44-35N 001-30W,
   44-30N 001-30W, 44-30N 001-20W.
2. CANCEL THIS MSG 242130Z MAR 22.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Gunnery and live firing
Naval or coastal guns firing into a sea area for practice, at stated times.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · military exercises

98 within 180 nm since 2009 · 0 in the last 12 months · 0 listed in force now

09
10
15
20
24

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-02 22:34Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.